Samsung S24 Data/Connection issue

[Mart79]

Hi, 

Just recently i started experiencing issues with my Samsung S24 phone, whereby I was finding it difficult to maintain a 4G or 5G connection, it would be fine 1 minute, then shortly afterwards would drop to 'EDGE', and the only way I found I could get back on a 4/5G connection was to toggle Airplane mode or completely restart the phone, In the long term this wasn't a great option due to the amount of times the signal would drop off. Additionally to losing signal, whilst I could make an receive calls, the connection was terrible, I could hear the person I was speaking to, however, they couldn't hear me as the line was breaking up.

I spoke to EE numberous times, each time to be told it was a sim issue, so firstly downloaded a new eSim, however I believe when downloading, there was a slight interference with the download. So, mistakingly deleted the eSim, before activating a new 1, which meant I obviously had to wait for a new pysical sim to be sent out in the post. 

initially the new sim seemed to have solved the issue, it took a few mins for the phone to recognise the new sim, but then notification after notification started filtering through. After a few hours, I started noticing the same issues returning. Calls could  be made but the lone would break up, data would drop constantly. 

I have another phone supplied to me by my employer, so to test if it was in fact the sim itself I popped the sim from my personal phone and the sim from my work phone into my personal, The work sim in my personal phone worked perfectly, personal sim in my work phone, again works perfectly, no data drops whatsoever. 

Has anyone had this issue? Solved it, I read that resetting network settings can solve it, however I did this numerous times to no avail. It's driving me round the bend, and also really really odd that the sim will work fine in another device, and a sim from another supplier will work fine in my own device, yet the 2nd I put my own personal sim in my personal phone, the data drops.

Sorry it is such a long post.......but it is probably the best way to explain the issues I am having, (My work phone is an old device, that's very slow, compared to my S24)

[bristolian]

Your symptoms sound like that of a phone falling back from 4G/5G to 2G. Data would be usable for the most basic functions but not much else, it certainly wouldn't work during calls. Voice calls themselves would be using narrowband codecs thus no HD/HD+ audio.

The SIM-swap results are curious - suggesting it's the SIM/device combination causing this. Is the device running EE-specific (EVS) firmware?

[Mart79]

I have no idea if the firmware is as it should, the software update is fully up to date. I check often, Even more so since the problem started (Shortly after the update at the beginning of October)

Spoke to Samsung earlier to see if they could shed some light, they just said do a factory reset. So, i have, and no it hasn't solved the quality of the call. 

I ordered a new phone a couple of weeks ago, so, just waiting for that to arrive. But in the meantime it would be nice to have my own phone working and not having to rely on a borrowed 1 that is about as fast as a tortoise 

[bristolian]

Android phones can either run generic (BTU) or operator-specific (in EE's case, EVR) firmware. There can be some customisations in the specific firmware, I've learned this from past experience.

Under Settings > About phone > Software. Look for "software version" or something similar... this will be a long string of numbers but either BTU or EVR should be in  there somewhere.

Any device supplied by EE should run EVR

[Mart79]

I assume this is the section your referring too

[bristolian]

Ah, yours is running EU-generic firmware - the EUX.

It "shouldn't" be a cause, but I've experienced similar performance issues on a previous phone that turned out to be directly related to the BTU firmware so that's something only ruled out by EVR firmware being installed. That's something only Samsung or an EE repair centre should undertake.

Might be worth comparing with your work phone, which variant it runs.